{% load humanize %}

<p>For this task you will click on {{ min_points|apnumber }} white or gray
things in the image.  Click on items that <i>should</i> appear white or gray if
placed under white lighting.  Avoid extremely bright or oversaturated spots
(see below for example).</p>

<p>By &quot;white or gray&quot;, we mean that the object would be colorless if
placed under pure white lighting.  If a white object appears colored because of
a yellow light, please still click on it.</p>

<br/>
<h2>Good Examples</h2>

<div class="row-fluid">
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb1.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb8.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb9.jpg"/>
		</div>
	</div>
</div>
<div class="row-fluid" style="margin-top: 20px">
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb4.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb2.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb6.jpg"/>
		</div>
	</div>
</div>
<div class="row-fluid" style="margin-top: 20px">
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb7.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb5.jpg"/>
		</div>
	</div>
	<div class="span4">
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb3.jpg"/>
		</div>
	</div>
</div>

<br/>
<h2>Bad Examples</h2>

<div class="row-fluid">
	<div class="span6">
		<p>Avoid points that are bright and oversaturated.</p>
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb-bad1.jpg"/>
		</div>
	</div>
	<div class="span6">
		<p>Avoid colored things.</p>
		<div class="thumbnail">
			<img src="{{ STATIC_URL }}img/mturk/wb-bad2.jpg"/>
		</div>
	</div>
</div>

<br/>
<h2>Why are we doing this?</h2>

<p>Our intention is to estimate the tint from the light source, but without
directly looking at the light source.</p>

<p>We are performing <i>whitebalancing</i>, a technique that corrects the color
of lighting in photographs.  This experiment is part of ongoing research at
Cornell University.</p>
